<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script>
        let user = {
            name:'jiajia',
            age:16,
            sex:'男'
        }
        console.log(JSON.stringify(user))
    </script>
</head>
<body>

</body>
</html>